Solar Flares, the Solar Corona, and Solar Physics
نویسندگان
چکیده
منابع مشابه
An Energy Release Mechanism of Current Loops in the Solar Atmosphere : Solar Flares and Corona Heating
A mechanism is proposed to account for the energy release by a bipolar current loop in the solar atmosphere. This mechanism is electromagnetic in nature and utilizes the non-zero J X B forces. No dissipation of the magnetic energy by resistivity, magnetic reconnection, or circuit interruption is required. From the observed fact that bipolar current loops do exist in quasi-equilibrium in the sol...
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Using polarized brightness (pB) measurements made by the High Altitude Observatory (HAO) Mauna Loa Mk III K-coronameter, we investigate the daily changes of path-integrated density at 1.15 R,. During 1996, when simultaneous pB and helioseismology data were available, we find that the correlation of pB (at zero time lag and 207 latitude lag) varies with latitude in the same way that the subsurfa...
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The solar corona is the hot, ionized outer atmosphere of the Sun. Coronal plasma expands into interplanetary space as a supersonic bulk outflow known as the solar wind. This tenuous and unbounded medium is a unique laboratory for the study of kinetic theory in a nearly collisionless plasma, as well as magnetohydrodynamic waves, shocks, and jets. Particle velocity distributions in the solar wind...
متن کاملComposition Variations in the Solar Corona and Solar Wind
Order of magnitude variations in relative elemental abundances are observed in the solar corona and solar wind. The instruments aboard SOHO make it possible to explore these variations in detail to determine whether they arise near the solar surface or higher in the corona. A substantial enhancement of low First Ionization Potential (FIP) elements relative to high FIP elements is often seen in ...
متن کاملTurbulence in the Solar Corona
The solar corona has been revealed in the past decade to be a highly dynamic nonequilibrium plasma environment. Both the loop-filled coronal base and the extended acceleration region of the solar wind appear to be strongly turbulent, but direct observational evidence for a cascade of fluctuation energy from large to small scales is lacking. In this paper I will review the observations of waveli...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2000
ISSN: 0074-1809
DOI: 10.1017/s007418090016348x